Improvement in ruling-machines



@UNITED STATEs PATENT QEEICE.

DORUS W. LANDVOIGT, OF WASHINGTON,DISTRICT OF COLUMBIA.

IMPROVEMENT IN RULING-MACHINES.

SPECIFICATION.

able extensible cam in connection With the penbeam, actuated by a similar' cam, as hereinafter described.

In the drawing, Figure l represents a transverse section of a portion of a ruling-machine immediately in front of the driving-cylinder, showing the pen-clamp and the vibrating rod. Fig. 2 is a longitudinal section through a portion of a ruling-m achin e, showing my invention; and Figs. 3 and 4 are views ofthe adjustable cam.

A represents the driving-cylinder of the machine, and -a the cloth upon which the paper travels, said cylinder having at one end a series of recesses in which the cams b b are clamped, as in the patent above referred to. B is the penclamp, Which is mounted in the usual manner and actuated by means of the cams b b through the medium of the arm or lever O, Fig. 2. D is a flat rod or bar, having journals at its inner edge on each end, and mounted similarly to the penclamp B, and so arranged by means of an arm, d, which falls over the cams b b, as to have a motion similar to the pen-clamp. The said rod is secured in adjustable bearings at each side of the machine, and can be adjusted longitudinally' in order to bring its arm over any of the cams, as may be desired. The said rod extends across the machine a little below and in front of the clamp, and can be adjusted either vertically or horizontally by means of set-screws E E, so as to Specification forming part of Letters Patent No. 122,262, dated December 26, 1871.

bring its outer edge against the pens in the clamp. It will be seen that when the edge of the rod D is raised it will lift the pens which rest against its edge from the paper independently of any 1uotion ofthe pen-clamp. By having a series o t long pens, e, and short pens, f, in the clamp, as shown, the long pens overreaching the edge of the rod D, and theshort pens resting against said edge, it will readily be seen that two heads may be struck automatically at dilerent places on the longitudinally, as shown, and so arranged that the parts may be extended or set together longitudinally, which will increase or diminish the length of the cam, as shown by the dotted lines in the drawing.

By so constructing the cams one will serve the purpose of many, thus materiallyl diminishing the expense of a machine, and making it much more convenient to manipulate.

What I claim as my invention, and desire to secure by Letters Patent, is-

The vibratory pen-lifting plate'D, pivoted in adjustable bearings E and actuated by the eX- tensible cam b b independently of the cam-actu ated pen-clamp B, substantially as and `for the purposes herein described.

D. W. LANDVOIGT. Witnesses:

CEAS. L. GooMBs,

J. SEEGEANT BLANKMAN. (16) 

